One day my bonsai-companion Jens (aka Bonsai Kunst Hamburg) said according to the design of this particular white cedar :
"Don't get me wrong, the tree is good, but the design tends to be a bit boring. There should be more of a kind of asymetry within the crown, enhancing the overall tension and interest ..."
Well, I thought about it and decided to give it a try.
Sometimes it can be very precious to hear the ciritique of experienced bonsai-fellows ...